A 4.7 magnitude earthquake hit Istanbul and the Marmara region Saturday.
Turkey's Disaster and Emergency Management Authority (AFAD) said the quake struck 22.7 kilometers (14 miles) south of Istanbul's Silivri district at a shallow depth of 7 km.
There was no reported damage, Istanbul Mayor Ekrem Imamoğlu said on Twitter.
"All teams are on duty; no incident has been reported so far," he wrote.
TV broadcasters showed footage of people running in panic from a local shop in Silivri.
A powerful magnitude 5.8 tremor shook Istanbul in September, causing momentary panic across the city.
Turkey is among the world's most seismically active zones as it is situated on several active fault lines, with the most potentially devastating one being the Northern Anatolia Fault (NAF), the meeting point of the Anatolian and Eurasian tectonic plates.
Please click to read our informative text prepared pursuant to the Law on the Protection of Personal Data No. 6698 and to get information about the cookies used on our website in accordance with the relevant legislation.
6698 sayılı Kişisel Verilerin Korunması Kanunu uyarınca hazırlanmış aydınlatma metnimizi okumak ve sitemizde ilgili mevzuata uygun olarak kullanılan çerezlerle ilgili bilgi almak için lütfen tıklayınız.